While I accept that IQ has some statistically significant correlations with interesting things, and is stable within individuals, I don't think there is consensus as to what that actually means. But I might just need to read more. Actually, I always need to read more.

That aside, I think the core disagreement here is that (I think) we have both taken the same data (a lot of stuff surrounding 'hard work' and education is clearly utter rubbish) and taken it in two different directions: you've gone in a more innate-ability, behavioural-genetics direction (I think), while I'm more interested in things like the effect of practice. The nature-vs-nurture debate will probably outlive both of us, and there is evidence for both arguments.

Ultimately, I don't find innate stuff that interesting, because there is nothing I can do about it. I would rather focus on a minor factor that I can change than a major factor that I can't, and the research suggests that practice et al are far more than minor factors. So I focus on those. And until the debate is resolved, I will continue to espouse education policies which reflect that attitude.

Thanks for the references; a couple there that I hadn't seen before, and it's always worth reading stuff that disagrees with you.